Home / 3,998,466.12-5,518,020.90-2,187,630.12

Finding the Fourth Proportional to 3,998,466.12, 5,518,020.90 and 2,187,630.12

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Solution

The fourth proportional to 3,998,466.12, 5,518,020.90 and 2,187,630.12 is: 3,019,004.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,998,466.12 : 5,518,020.90 = 2,187,630.12 : x
  2. Step 2: Convert to fraction form
    3,998,466.12/5,518,020.90 = 2,187,630.12/x
  3. Step 3: Cross multiply
    3,998,466.12x = 5,518,020.90 × 2,187,630.12
  4. Step 4: Simplify right side
    3,998,466.12x = 12,071,388,723,629.51
  5. Step 5: Solve for x
    x = 12,071,388,723,629.51/3,998,466.12
  6. Step 6: Final answer
    x = 3,019,004.88

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.